#ifndef _MQ7_H_
#define _MQ7_H_
#include "stm32f10x_conf.h"
#include "math.h"
#include "adc.h"

extern uint16_t dma_Value[amd_BufferSize];

extern void mq7_init(void);
extern float get_mq7_vol(void);
extern float get_co_ppm(void);
#endif


